/* The chat app (peer.html, and the dev page chat.html). Colours, type and
   spacing come from /tokens.css, shared with the site pages. */

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--t-base)/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-underline-offset: 3px; }
a:hover { color: var(--signal-ink); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* --- Header --- */

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  flex: none;
}
header h1 { font-size: inherit; font-weight: 600; letter-spacing: -0.015em; margin: 0; line-height: 1; }
header .sub { color: var(--muted); font-size: var(--t-sm); }
header .spacer, .strip-row .spacer { flex: 1; }

header .brand { display: flex; align-items: baseline; gap: .45em; font-size: 18px; color: var(--ink); text-decoration: none; margin-right: 4px; }
/* The pieces are as tall as the wordmark's capitals (Instrument Sans caps
   are 0.73em) and sit on its baseline, so the two line up at any size. */
.mark { display: inline-flex; align-items: flex-end; gap: .1em; height: .73em; }
.mark i { width: .27em; height: .73em; background: var(--ink); border-radius: .07em; }
.mark i:last-child { background: var(--signal); }
header .model {
  font: 400 var(--t-xs)/1 var(--mono);
  color: var(--muted);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 5px 7px;
  white-space: nowrap;
}

.pill {
  font: 500 var(--t-xs)/1 var(--mono);
  padding: 7px 9px;
  border-radius: 3px;
  border: 1px solid var(--rule-strong);
  color: var(--muted);
  white-space: nowrap;
}
.pill.ok   { color: var(--ok); border-color: #b7d8c0; }
.pill.busy { color: var(--warn); border-color: #ead2a8; }
.pill.err  { color: var(--err); border-color: #efc2bd; background: var(--err-soft); }
/* The cluster badge: the public demo, or a private cluster. */
#mesh { text-transform: uppercase; letter-spacing: .05em; }
#mesh.public { color: var(--warn); border-color: #ead2a8; background: var(--warn-soft); }
#mesh.private { color: var(--ink); border-color: var(--ink); }

/* --- Buttons --- */

button, a.button {
  font: 500 var(--t-sm)/1 var(--sans);
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r);
  padding: 9px 13px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
button:hover:not(:disabled), a.button:hover { border-color: var(--ink); color: var(--ink); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--signal); border-color: var(--signal-edge); color: var(--on-signal); }
button.primary:hover:not(:disabled) { background: var(--signal-hover); border-color: var(--signal-edge); color: var(--on-signal); }
a.button.quiet { border-color: transparent; color: var(--muted); }
a.button.quiet:hover { color: var(--ink); border-color: transparent; text-decoration: underline; }

button.icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px;
  line-height: 1;
  border-color: transparent;
}
button.icon:hover:not(:disabled) { border-color: var(--rule-strong); }
/* A setting differs from its default. */
#settingsBtn.changed::after {
  content: "";
  position: absolute;
  top: 4px; right: 4px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal);
}
/* Contribute while this tab lends: a small live square. */
#contribBtn.lending::before {
  content: "";
  display: inline-block;
  width: 7px; height: 7px;
  margin-right: 7px;
  border-radius: 1px;
  background: var(--signal);
  vertical-align: 0;
}

/* --- The model bar (as on the setup screen) and the health line --- */

#mapstrip {
  flex: none;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}
.strip { max-width: 46rem; margin: 0 auto; }
.strip-row { display: flex; align-items: baseline; gap: 6px 12px; min-width: 0; }
.strip-label { font-size: var(--t-sm); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.strip-num { font: 500 16px/1 var(--sans); letter-spacing: -0.01em; color: var(--signal-ink); }
#status { font: 400 var(--t-xs)/1 var(--mono); color: var(--faint); white-space: nowrap; }
#status.err { color: var(--err); }

/* One cell per piece of the model, shaded by how many ready computers hold
   it; this tab's own pieces in violet. */
.map { display: flex; gap: 2px; align-items: stretch; height: 22px; margin: 10px 0 8px; }
.map .cell {
  flex: 1 1 0;
  min-width: 2px;
  border-radius: 2px;
  background: var(--surface-2);
  transition: background .25s;
}
/* Three colours: pale missing, dark held, violet yours. A piece still
   downloading counts as missing. */
.map .cell[data-state="thin"], .map .cell[data-state="deep"] { background: var(--ink-2); }
.map .cell.mine { background: var(--signal); }
/* Plays the first time a piece is held by anyone. */
.map .cell.lit { animation: light 700ms var(--ease); }
@keyframes light { 0% { transform: scaleY(1.4); } 100% { transform: scaleY(1); } }
@media (prefers-reduced-motion: reduce) { .map .cell.lit { animation: none; } }

#health { font: 500 var(--t-xs)/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); }
#health::before {
  content: "";
  display: inline-block;
  width: 7px; height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--rule-strong);
  vertical-align: 1px;
}
#health[data-state="ok"]::before { background: var(--ok); }
#health[data-state="thin"]::before, #health[data-state="busy"]::before { background: #d08a1c; }
#health[data-state="err"]::before { background: var(--err); }

/* --- The lanes: one line per computer, under the pieces it holds --- */

button.toggle {
  font: 400 var(--t-xs)/1 var(--mono);
  color: var(--muted);
  background: none;
  border: 0;
  padding: 4px 0;
}
button.toggle { display: inline-flex; align-items: center; gap: 6px; }
button.toggle svg { flex: none; }
button.toggle .count + svg { margin-left: 8px; }
button.toggle::after { content: " ▾"; }
button.toggle[aria-expanded="false"]::after { content: " ▸"; }
button.toggle:hover:not(:disabled) { color: var(--ink); }

.lanes {
  max-height: 132px;
  margin-top: 8px;
  overflow-y: auto;
  border-top: 1px solid var(--rule);
  padding: 6px 0 2px;
  overscroll-behavior: contain;
}
.lane { transition: opacity .35s var(--ease), transform .35s var(--ease); }
.lane.entering { opacity: 0; transform: translateY(-4px); }
.lane.leaving { opacity: 0; }
/* Lanes and the model bar share columns: name and stat on the left, the
   pieces on the right, so every line sits under the pieces it holds. */
.lane-grid { display: grid; grid-template-columns: 8rem minmax(0, 1fr) 8rem; column-gap: 18px; align-items: center; }
/* The side text hugs the bar: names right-aligned, numbers left-aligned. */
.lane-grid > :first-child { justify-self: end; text-align: right; max-width: 100%; }
.lane-grid > :last-child:not(:first-child) { justify-self: start; text-align: left; }
.chatters.lane-grid > :last-child { justify-self: stretch; }
.lane-side { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; min-width: 0; }
.model-row .map { margin: 0; }
.model-row { margin-bottom: 4px; }
.flag-row { margin-bottom: 8px; }
.flag-row button.toggle { padding-right: 0; }
.lane-track {
  width: 100%;
  height: 26px;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: none;
  text-align: left;
}
.lane-track:hover:not(:disabled), .lane.open .lane-track { background: var(--surface); }
.lane-name { font: 400 var(--t-xs)/1 var(--mono); color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lane-stat { font: 400 var(--t-xs)/1 var(--mono); color: var(--faint); }
.lane.me .lane-name { color: var(--signal-ink); font-weight: 500; }
.lane.me .lane-stat { color: var(--signal-ink); }
.lane-rail { position: relative; display: block; height: 8px; }
.lane-bar {
  position: absolute; top: 0; height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-2);
  transition: left .4s var(--ease), width .4s var(--ease);
}
.lane-have { display: block; height: 100%; background: var(--ink-2); transition: width .4s var(--ease); }
.lane.me .lane-have { background: var(--signal); }
.lane-detail {
  margin: 2px 0 6px 4px;
  padding: 8px 10px;
  border-left: 2px solid var(--rule-strong);
  font: 400 var(--t-xs)/1.6 var(--mono);
  color: var(--muted);
  white-space: pre-line;
}
.lane.me .lane-detail { border-left-color: var(--signal); }
.chatters { padding: 8px 0 2px; border-top: 1px solid var(--rule); }
.chatters-label { font: 400 var(--t-xs)/1.3 var(--mono); color: var(--muted); white-space: nowrap; }
.chatters-icons { display: flex; flex-wrap: wrap; align-items: center; gap: 3px; font: 400 var(--t-xs)/1 var(--mono); color: var(--faint); }
.person { width: 12px; height: 14px; color: var(--rule-strong); }
.person.me { color: var(--signal); }
.lanes:empty::before { content: "Nobody is lending yet."; display: block; padding: 8px 0; font-size: var(--t-xs); color: var(--faint); }

/* --- Transcript --- */

#transcript { flex: 1; overflow-y: auto; padding: 28px 16px 40px; }
.inner { max-width: 46rem; margin: 0 auto; display: flex; flex-direction: column; gap: 22px; }

.msg { display: flex; flex-direction: column; gap: 6px; }
.msg .who {
  font: 500 var(--t-xs)/1 var(--mono);
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--faint);
}
.msg .body { overflow-wrap: anywhere; line-height: 1.65; }
.msg.user { align-items: flex-end; }
.msg.user .who { display: none; }
.msg.user .body {
  white-space: pre-wrap;
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 10px 10px 2px 10px;
  background: var(--surface-2);
}
.msg.note .body { color: var(--muted); font-size: var(--t-sm); white-space: pre-wrap; border-left: 2px solid var(--rule); padding-left: 12px; }
.msg.note.err .body { color: var(--err); border-left-color: var(--err); }
.msg.note .who { display: none; }
.msg .meta { font: 400 var(--t-xs)/1.4 var(--mono); color: var(--faint); }
.msg .meta:empty { display: none; }
.msg .meta[title] { cursor: help; }
.msg details.prof { font: 400 var(--t-xs)/1.4 var(--mono); color: var(--faint); }
.msg details.prof summary { cursor: pointer; }
.msg details.prof pre { margin: 6px 0; overflow-x: auto; white-space: pre; font-size: 11px; }
.msg details.prof button { font-size: 11px; padding: 5px 8px; }

/* Rendered markdown in a reply (web/markdown.js). */
.md > :first-child { margin-top: 0; }
.md > :last-child { margin-bottom: 0; }
.md p, .md ul, .md ol, .md pre, .md blockquote, .md table { margin: 0 0 12px; }
.md h1, .md h2, .md h3, .md h4 { font-weight: 600; letter-spacing: -0.01em; line-height: 1.3; margin: 18px 0 8px; }
.md h1 { font-size: 20px; } .md h2 { font-size: 18px; } .md h3, .md h4 { font-size: 16px; }
.md ul, .md ol { padding-left: 1.4em; }
.md li + li { margin-top: 4px; }
.md code { font: 400 .88em/1.4 var(--mono); background: var(--surface-2); padding: 1px 5px; border-radius: 3px; }
.md pre { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); padding: 12px 14px; overflow-x: auto; }
.md pre code { background: none; padding: 0; font-size: 13px; white-space: pre; }
.md blockquote { border-left: 2px solid var(--rule-strong); padding-left: 12px; color: var(--muted); }
.md hr { border: 0; border-top: 1px solid var(--rule); margin: 16px 0; }
.md a { color: var(--ink); text-decoration: underline; }
.md table { border-collapse: collapse; font-size: var(--t-sm); display: block; overflow-x: auto; }
.md th, .md td { border-bottom: 1px solid var(--rule); padding: 6px 12px 6px 0; text-align: left; }
.md th { font-weight: 600; border-bottom-color: var(--rule-strong); }

/* Caret while tokens are still arriving. */
.streaming .body::after {
  content: "";
  display: inline-block;
  width: 7px; height: 14px;
  margin-left: 2px;
  vertical-align: -2px;
  background: var(--signal);
  animation: blink 1s steps(2, start) infinite;
}
.streaming .body.md > :last-child { display: inline; }
@keyframes blink { to { visibility: hidden; } }
@media (prefers-reduced-motion: reduce) { .streaming .body::after { animation: none; } }

/* The model's <think> block, collapsed above its answer. */
.msg .think { margin: 0 0 4px; border-left: 2px solid var(--rule); padding-left: 12px; font-size: var(--t-sm); color: var(--muted); }
.msg .think > summary { cursor: pointer; user-select: none; font: 400 var(--t-xs)/1.6 var(--mono); }
.msg .think > div { white-space: pre-wrap; margin-top: 6px; }

/* --- Empty states: the invite card in a private cluster --- */

.share {
  border: 1px solid var(--ink);
  border-left: 6px solid var(--signal);
  border-radius: var(--r);
  padding: 20px 22px;
}
.share h2 { font-size: var(--t-lg); font-weight: 600; letter-spacing: -0.01em; margin: 0 0 6px; }
.share p { margin: 0 0 14px; color: var(--muted); font-size: var(--t-sm); }
.share-link { display: flex; gap: 8px; }
.share-link input { flex: 1; min-width: 0; font: 400 var(--t-sm)/1 var(--mono); color: var(--ink-2); background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); padding: 9px 10px; }
.share-name { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: var(--t-sm); color: var(--muted); }
.share-name input { width: 12rem; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--rule-strong); border-radius: var(--r); padding: 7px 9px; }
.share .small { margin: 14px 0 0; font-size: var(--t-xs); font-family: var(--mono); }

/* --- Boot progress --- */

#boot { max-width: 46rem; width: 100%; margin: 0 auto; color: var(--muted); font-size: var(--t-sm); }
#bootwhat { color: var(--ink); font-weight: 500; }
#boot .bar { height: 3px; background: var(--surface-2); overflow: hidden; margin: 10px 0 8px; }
#boot .bar > div { height: 100%; width: 0; background: var(--signal); transition: width .15s; }
#bootnote { font: 400 var(--t-xs)/1.5 var(--mono); }

/* --- Composer --- */

footer {
  flex: none;
  border-top: 1px solid var(--rule);
  background: var(--bg);
  padding: 12px 16px 12px;
}
.composer { max-width: 46rem; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.row { display: flex; gap: 8px; align-items: flex-end; }
.row button { height: 44px; padding: 0 18px; font-size: var(--t-base); }

textarea {
  flex: 1;
  resize: none;
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r);
  padding: 11px 13px;
  min-height: 44px;
  max-height: 12rem;
}
textarea:focus { outline: none; border-color: var(--ink); }
textarea:disabled { background: var(--surface); }

.settings {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: center;
  font-size: var(--t-xs);
  color: var(--faint);
}
.settings label { display: flex; align-items: center; gap: 6px; }
.settings input[type=checkbox] { accent-color: var(--signal); margin: 0; }
.settings input[type=number], .settings input[type=text], .settings select {
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 3px 5px;
}
.settings input[type=number] { width: 4.2rem; }
.settings input[type=text] { width: 6rem; }
.settings .grow { flex: 1; }
#ctx { font-family: var(--mono); }
.hint { font-size: var(--t-xs); color: var(--faint); }
/* Always visible: the EU AI Act notice. */
.ai-notice { margin: 0; font-size: var(--t-xs); color: var(--faint); }

/* --- Drawers: settings and Contribute on the right, chats on the left --- */

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(11, 11, 12, .28);
  z-index: 10;
  animation: fade .18s ease-out;
}
.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(23rem, 100vw);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-left: 1px solid var(--ink);
  z-index: 11;
  animation: slidein .2s var(--ease);
}
@keyframes slidein { from { transform: translateX(100%); } }
@keyframes fade { from { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .drawer, .scrim, #welcome[open] { animation: none !important; } }

.drawer-head, .drawer-foot {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule);
}
.drawer-foot { border-bottom: 0; border-top: 1px solid var(--rule); }
.drawer-head h2 { font-size: 16px; font-weight: 600; margin: 0; }
.drawer-head .icon { font-size: 20px; width: 32px; height: 32px; padding: 0; }
.drawer-body { flex: 1; overflow-y: auto; padding: 4px 16px 16px; }
.drawer section { padding: 10px 0 14px; }
.drawer section + section { border-top: 1px solid var(--rule); }
.drawer h3 {
  font: 500 var(--t-xs)/1 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 10px 0 10px;
}
.field { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 7px 0; }
.field .name { display: block; font-size: 14px; }
.field .desc { display: block; font-size: var(--t-xs); color: var(--muted); line-height: 1.35; }
.field input, .field select {
  flex: none;
  font: inherit;
  font-size: var(--t-sm);
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r);
  padding: 6px 8px;
}
.field > span { flex: 1; min-width: 0; }
.field input { width: 5.5rem; }
.field select { width: 9.5rem; }
.field input:focus, .field select:focus { outline: none; border-color: var(--ink); }

/* Contribute: lending state, and the numbers as label/value rows. */
.lend-state { margin: 0 0 6px; font-size: 14px; }
.lend-actions { display: flex; gap: 8px; margin-top: 8px; }
.kv { margin: 0; }
.kv > div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 7px 0; border-bottom: 1px solid var(--rule); }
.kv > div:last-child { border-bottom: 0; }
.kv dt { font-size: var(--t-sm); color: var(--muted); flex: none; }
.kv dd { margin: 0; font: 400 var(--t-xs)/1.4 var(--mono); text-align: right; overflow-wrap: anywhere; }
.kv dd.ok { color: var(--ok); }
.kv dd.busy { color: var(--warn); }
.kv dd.err { color: var(--err); }

/* The chat list: a left drawer, or a sidebar that stays open. */
:root { --side: 17rem; }
.drawer.left {
  left: 0; right: auto;
  border-left: 0;
  border-right: 1px solid var(--ink);
  animation-name: slidein-left;
}
@keyframes slidein-left { from { transform: translateX(-100%); } }
/* Docked: laid out as part of the page (peer.js's layoutChats()). */
.drawer.left.docked { width: var(--side); animation: none; z-index: 5; border-right-color: var(--rule); background: var(--surface); }
body.chats-docked { padding-left: var(--side); }

.newchat { width: 100%; margin: 12px 0 6px; text-align: left; padding: 10px 12px; }
.chats-note { font-size: var(--t-xs); color: var(--muted); line-height: 1.45; margin: 10px 0; }
#chatList .group + .group { margin-top: 8px; }
#chatList .group > :first-child { font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--faint); margin: 14px 0 6px; }
.chat-item { display: flex; align-items: center; gap: 2px; border-radius: var(--r); }
.chat-item:hover, .chat-item.current { background: var(--surface-2); }
.chat-item.current { box-shadow: inset 3px 0 0 var(--signal); }
.chat-item .open {
  flex: 1;
  min-width: 0;
  text-align: left;
  background: none;
  border: 0;
  padding: 8px 10px;
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat-item .open.foreign { color: var(--muted); font-style: italic; }
.chat-item button.icon { background: none; border: 0; color: var(--muted); padding: 5px; opacity: 0; }
.chat-item:hover button.icon, .chat-item.current button.icon,
.chat-item button.icon:focus-visible { opacity: 1; }
.chat-item button.icon:hover:not(:disabled) { color: var(--ink); }
.chat-item input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--ink);
  border-radius: var(--r);
  padding: 5px 8px;
}
#chats .drawer-foot { justify-content: flex-start; }
#chats .drawer-foot button { font-size: var(--t-xs); padding: 6px 10px; }

/* --- The pre-join card (welcome.js), over the chat page --- */

#welcome.setup {
  width: min(34rem, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  max-height: calc(100dvh - 24px);
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--bg);
  color: var(--ink);
  box-shadow: 0 30px 80px rgba(11, 11, 12, .18), 0 2px 8px rgba(11, 11, 12, .06);
  overflow-y: auto;
}
#welcome.setup[open] { animation: rise .25s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(8px) scale(.99); } }
/* The chat page stays visible behind, softened. */
#welcome::backdrop { background: rgba(245, 246, 247, .55); backdrop-filter: blur(5px); }
.setup-inner { padding: 28px; }
.setup-row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 10px; font-weight: 600; font-size: var(--t-sm); }
.setup-num { font: 500 16px/1 var(--sans); letter-spacing: -0.02em; color: var(--signal-ink); }

.lobby-name { margin: 0 0 8px; font: 500 var(--t-xs)/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--signal-ink); }

/* The widget: the model bar and the slider together. */
.lend-widget { border: 1px solid var(--rule); border-radius: 12px; padding: 18px 18px 22px; background: var(--surface); }
.lend-row { margin-top: 22px; }

/* The model bar: one cell per piece of the model. */
.preview-bar { display: grid; grid-template-columns: repeat(var(--n, 66), minmax(0, 1fr)); gap: 2px; height: 26px; }
.preview-bar i { border-radius: 2px; background: var(--surface-2); box-shadow: inset 0 0 0 1px var(--rule); transition: background .15s; }
.preview-bar i[data-state="thin"], .preview-bar i[data-state="deep"] { background: var(--ink-2); box-shadow: none; }
.preview-bar i[data-state="you"] { background: var(--signal); box-shadow: none; }
.preview-bar:empty { border-radius: 4px; background: var(--surface-2); }
.setup-caption { margin: 14px 0 0; min-height: 1.4em; font-size: var(--t-xs); color: var(--muted); }
.preview-bar + .lend-row { margin-top: 20px; }

/* The lending slider. */
.lend-bar {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--rule);
  cursor: pointer;
  touch-action: none;
  user-select: none;
}
.lend-bar::before { content: ""; position: absolute; inset: -14px 0; }
.lend-you { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 999px; background: var(--signal); transition: width .08s linear; }
.lend-bar.dragging .lend-you { transition: none; }
.lend-handle {
  position: absolute; right: -11px; top: 50%;
  width: 22px; height: 22px; margin-top: -11px;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 0 0 2px var(--signal), 0 2px 8px rgba(11, 11, 12, .2);
  cursor: grab;
}
.lend-bar.dragging .lend-handle { cursor: grabbing; }
.lend-handle:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.setup-go { width: 100%; height: 52px; margin-top: 22px; font-size: 16px; }
.setup-legal { margin: 14px 0 0; font-size: var(--t-xs); line-height: 1.5; color: var(--muted); text-align: center; }
.setup-legal a { color: var(--ink-2); }

/* --- Example prompts in an empty chat --- */

.suggest { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 4px auto 0; max-width: 36rem; }
.suggest-head { width: 100%; margin: 0 0 6px; text-align: center; font: 500 var(--t-xs)/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--faint); }
.suggest button { font-weight: 400; color: var(--ink-2); border-color: var(--rule); border-radius: 999px; padding: 9px 14px; white-space: normal; text-align: left; }
.suggest button:hover:not(:disabled) { border-color: var(--signal); color: var(--signal-ink); }
/* In an empty chat, notes above the example prompts are centred with them. */
.msg.note:has(~ .suggest) { align-items: center; }
.msg.note:has(~ .suggest) .body { border-left: 0; padding-left: 0; text-align: center; max-width: 36rem; }
.share + .suggest { margin-top: 24px; }

/* --- Narrow screens --- */

@media (max-width: 760px) {
  header { padding: 8px 12px; gap: 6px 8px; }
  header .model { display: none; }
  #newmesh { font-size: 0; padding: 9px 12px; }
  #newmesh::after { content: "New cluster"; font-size: var(--t-sm); }
  #mapstrip { padding: 8px 12px; }
  .strip-row { flex-wrap: wrap; }
  footer { padding: 10px 12px; }
  .drawer { width: 100vw; border-left: 0; }
  .drawer.left { border-right: 0; }
  .chat-item button.icon { opacity: 1; }
  .setup-inner { padding: 32px 18px; }
  .lane-grid { grid-template-columns: 6.5rem minmax(0, 1fr) 4.5rem; column-gap: 8px; }
  .strip-gb { display: none; }
}
.person { fill: currentColor; stroke: none; }

/* --- The create page (create.html): a card over the landing network --- */

body.create-page { display: block; height: auto; min-height: 100vh; min-height: 100dvh; position: relative; }
.create-page .hero-net {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 40% 60% at 50% 50%, transparent 40%, #000 100%);
  mask-image: radial-gradient(ellipse 40% 60% at 50% 50%, transparent 40%, #000 100%);
}
.create-brand { position: relative; z-index: 1; display: inline-flex; align-items: baseline; gap: .45em; margin: 20px 24px; font-size: 19px; font-weight: 600; letter-spacing: -0.015em; color: var(--ink); text-decoration: none; }
.create-card {
  position: relative; z-index: 1;
  width: min(38rem, calc(100vw - 24px));
  margin: 4vh auto 48px;
  padding: 28px;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: 0 30px 80px rgba(11, 11, 12, .12), 0 2px 8px rgba(11, 11, 12, .05);
}
.create-title { font-size: clamp(24px, 3.4vw, 32px); font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; margin: 0 0 8px; }
.create-intro { margin: 0 0 22px; color: var(--muted); font-size: var(--t-sm); }
.create-field { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 22px 0 0; padding: 0; border: 0; }
.create-field .name { font-weight: 600; font-size: var(--t-sm); padding: 0; }
.create-field input[type=text] {
  flex: none; width: 12rem;
  font: inherit; font-size: var(--t-sm);
  color: var(--ink); background: var(--bg);
  border: 1px solid var(--rule-strong); border-radius: var(--r);
  padding: 9px 10px;
}
.create-field input[type=text]:focus { outline: none; border-color: var(--signal); }
.create-field select {
  flex: none; width: 12rem;
  font: inherit; font-size: var(--t-sm);
  color: var(--ink); background: var(--bg);
  border: 1px solid var(--rule-strong); border-radius: var(--r);
  padding: 9px 10px;
  cursor: pointer;
}
.create-field select:focus { outline: none; border-color: var(--signal); }

/* --- A full model bar pulses: a wave of light runs along the pieces --- */

@keyframes wave {
  0%, 70%, 100% { box-shadow: inset 0 0 0 40px rgba(112, 34, 214, 0); }
  80% { box-shadow: inset 0 0 0 40px rgba(112, 34, 214, .55); }
}
.map.full .cell, .preview-bar.full i {
  animation: wave 3.2s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 28ms);
}
@media (prefers-reduced-motion: reduce) {
  .map.full .cell, .preview-bar.full i { animation: none; }
}

/* The model's numbers in the chat strip: the share, then GB held of the total. */
.strip-nums { display: inline-flex; align-items: baseline; gap: 6px; white-space: nowrap; }
.strip-gb { font: 400 var(--t-xs)/1 var(--mono); color: var(--muted); }

/* The pre-join lobby: one line. */
.lobby { margin-bottom: 18px; }
.lobby-line { margin: 0; font-size: var(--t-md); font-weight: 600; letter-spacing: -0.01em; }
.lobby-invite { margin: 0 0 4px; font-size: 22px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
.lobby-invite:not([hidden]) + .lobby-line { font-size: var(--t-sm); font-weight: 400; color: var(--muted); }

/* --- The invite panel, down the right side of a private cluster --- */

:root { --side-r: 19rem; }
.side-right {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: var(--side-r);
  overflow-y: auto;
  padding: 22px 20px;
  background: var(--surface);
  border-left: 1px solid var(--rule);
  z-index: 5;
}
body.side-open { padding-right: var(--side-r); }
.side-right .share { border: 0; padding: 0; border-radius: 0; }
.side-right .share h2 { font-size: var(--t-md); line-height: 1.3; }
.side-right .share-link { flex-direction: column; }
.side-right .share-link input { width: 100%; font-size: var(--t-xs); }
.side-right .share-link button { width: 100%; height: 40px; }
.side-right .share-name { flex-direction: column; align-items: stretch; gap: 6px; margin-top: 18px; }
.side-right .share-name input { width: 100%; }

/* --- The model's name heading its bar; a dropdown on the create page --- */

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.model-name { font-weight: 600; }
.model-pick { position: relative; display: inline-flex; align-items: center; }
.model-pick select {
  -webkit-appearance: none; appearance: none;
  font: 600 var(--t-sm)/1 var(--sans);
  color: var(--ink);
  background: none;
  border: 0;
  border-radius: var(--r);
  padding: 5px 22px 5px 6px;
  margin-left: -6px;
  cursor: pointer;
}
.model-pick::after { content: "▾"; position: absolute; right: 7px; font-size: 11px; color: var(--muted); pointer-events: none; }
.model-pick select:hover { background: var(--surface-2); }
.model-pick select:focus-visible { outline: 2px solid var(--signal); outline-offset: 1px; }

/* The create page's two panes: the model and how much to lend on the
   left, options on the right. */
.create-panes { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 24px; align-items: stretch; }
.create-options { display: flex; flex-direction: column; gap: 20px; padding-top: 4px; }
.create-options .create-field { flex-direction: column; align-items: stretch; gap: 8px; margin: 0; }
.create-options .create-field input[type=text], .create-options .create-field select { width: 100%; }
@media (max-width: 760px) {
  .create-panes { grid-template-columns: 1fr; }
}

.create-field .hint { display: block; margin-top: 3px; font-weight: 400; font-size: var(--t-xs); color: var(--muted); }

/* A calm note about this browser, above the input (errors.js). */
.composer-note { margin: 0; font-size: var(--t-xs); color: var(--muted); text-align: center; }

/* A bubble clicked while chat cannot start: the input shows why. */
@keyframes nudge {
  0%, 100% { transform: none; }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}
textarea.nudge { animation: nudge .45s var(--ease); border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft); transition: border-color .6s, box-shadow .6s; }
@media (prefers-reduced-motion: reduce) { textarea.nudge { animation: none; } }

/* The create page's steps: each its own card, numbered, with space
   between, over the network background. */
.create-flow { position: relative; z-index: 1; width: min(38rem, calc(100vw - 24px)); margin: 2vh auto 56px; }
.create-head { padding: 0 4px; margin-bottom: 22px; }
.steps {
  list-style: none; margin: 0; padding: 0; counter-reset: step;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: 0 18px 48px rgba(11, 11, 12, .08), 0 1px 3px rgba(11, 11, 12, .04);
  overflow: hidden;
}
.step {
  position: relative;
  counter-increment: step;
  padding: 24px 24px 26px 72px;
}
.step + .step { border-top: 1px solid var(--rule); }
.step::before {
  content: counter(step);
  position: absolute; left: 24px; top: 24px;
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center;
  font: 500 var(--t-sm)/1 var(--mono);
  color: var(--on-signal); background: var(--signal);
}
.step-head { margin-bottom: 16px; }
.step-title { margin: 4px 0 4px; font-size: var(--t-md); font-weight: 600; letter-spacing: -0.01em; }
.step-title label { cursor: pointer; }
.step-title .optional { font-weight: 400; color: var(--muted); }
.step-desc { margin: 0; font-size: var(--t-sm); color: var(--muted); }
.step-input {
  width: 100%;
  font: inherit; font-size: var(--t-base);
  color: var(--ink); background: var(--bg);
  border: 1px solid var(--rule-strong); border-radius: 10px;
  padding: 11px 12px;
}
select.step-input { cursor: pointer; }
.step-input:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft); }
/* The slider sits straight in its card, not in a box of its own. */
.step .lend-widget { margin: 0; padding: 0; border: 0; background: none; }
.create-go { margin-top: 18px; padding: 0 4px; }
.create-go .setup-go { margin-top: 0; }
@media (max-width: 560px) {
  .step { padding: 18px 18px 20px; }
  .step::before { position: static; margin-bottom: 10px; }
}

/* A model to pick: a tile, selected with a purple edge and a tick. */
.model-list { margin: 0; padding: 0; border: 0; min-width: 0; }
.model-option {
  position: relative;
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px;
  padding: 14px 44px 14px 16px;
  border: 1px solid var(--rule-strong);
  border-radius: 12px;
  cursor: pointer;
}
.model-option input { position: absolute; opacity: 0; pointer-events: none; }
.model-option:has(input:checked) { border-color: var(--signal); box-shadow: inset 0 0 0 1px var(--signal); background: var(--signal-soft); }
.model-option:has(input:focus-visible) { outline: 2px solid var(--ink); outline-offset: 2px; }
.model-option-name { font-weight: 600; font-size: var(--t-base); }
.model-option-meta { font-size: var(--t-xs); color: var(--muted); }
.model-option:has(input:checked)::after { content: "✓"; position: absolute; top: 50%; right: 16px; transform: translateY(-50%); font-size: 13px; color: var(--signal-ink); }

/* The step being worked on stays clear; the others step back a little
   (never blurred). The hovered step wins while the pointer is over the
   steps; otherwise the focused one. On touch screens hovering does
   nothing, so only a focused field dims the rest. */
.step { transition: opacity .3s var(--ease); }
@media (hover: hover) {
  .steps:hover .step:not(:hover) { opacity: .45; }
}
/* Focus decides only while the pointer is elsewhere, so a control that
   keeps focus (the slider after a drag) does not override hovering. */
.steps:focus-within:not(:hover) .step:not(:focus-within) { opacity: .45; }
@media (prefers-reduced-motion: reduce) { .step { transition: none; } }